It's done just for TAX purposes.
Breaking Bad Season 2, Episode 8
Does your guy know the TAX code
and regulations in New Mexico?
Breaking Bad Season 3, Episode 11
The theory is that
if you really TAX your brain,
The Big Bang Theory Season 10, Episode 22
...and you go in the can
for felony TAX evasion.
Breaking Bad Season 3, Episode 9
It's the TAX man.
And he's looking at you.
Breaking Bad Season 3, Episode 9